Finding the Fourth Proportional to 2,427.30, 3,640.72 and 966.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,427.30 : 3,640.72 = 966.06 : x
2. Step 2: Convert to fraction form
   2,427.30/3,640.72 = 966.06/x
3. Step 3: Cross multiply
   2,427.30x = 3,640.72 × 966.06
4. Step 4: Simplify right side
   2,427.30x = 3,517,153.96
5. Step 5: Solve for x
   x = 3,517,153.96/2,427.30
6. Step 6: Final answer
   x = 1,449.00